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2001 Chrysler PT Cruiser strange A/C problem

Tiny
WILLYDAN
  • MEMBER
  • 2001 CHRYSLER PT CRUISER
  • 2.4L
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 101,000 MILES
Hi. Weird A/c problem. A/c quit working on my Sister's car. Hooked up my gauges. Low side was bouncing between 50 and 100+ psi. High side was steady 50 psi. I replaced the compressor and the condenser. Flushed the evaporator. Found the evap. To have a serious restriction. Replace the evap. Of course I replaced the orifice tube and the accumulator/drier. Pulled the system down w/ vacuum pump for one hour. Started to refill the system.
Didn't get the first can in and the high side jumped up to 100psi. High side sitting on 50 psi. I am totally confused. Never seen a system do this. Any ideas? Fyi. I am a dyi that use to work in the repair industry some 35 yrs ago. Thanks dan
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Saturday, July 26th, 2014 AT 8:17 AM

1 Reply

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Freon is temperature related so if you charged it and it went to 100 it may have been around a 80 degrees maybe higher, but when you started it and it went to 50 then the low side may have had a restriction and went to a vacuum hence the high side can only go so high. The remainder of the lines shold have been flushed as well as it may have sent a piece into the compressor and ruined it or it may have been low on oil. So recheck your work.
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Saturday, July 26th, 2014 AT 10:30 AM

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